Port muting indication to ue

Abstract

A method, system and apparatus are disclosed. A network node is provided which is configured to transmit a first signaling to the WD, the first signaling including a first channel state information reference signal, CSI-RS, measurement configuration, the first CSI-RS measurement configuration indicating a first plurality of ports to measure, transmit of a second signaling to the WD, the second signaling including a CSI-RS port muting pattern indication muting at least one muted port of the first plurality of ports and enabling the WD to utilize a modified CSI-RS measurement configuration for feedback reporting, and, receive, from the WD, at least one CSI-RS measurement report for at least one CSI-RS measurement on at least one port of the plurality of ports using the modified CSI-RS measurement configuration and omitting measurements on the at least one muted port.

1 . A wireless device, WD, configured to communicate with a network node, the WD comprising processing circuitry configured to:
 receive a first signaling from the network node, the first signaling including a first channel state information reference signal, CSI-RS, measurement configuration, the first CSI-RS measurement configuration indicating a first plurality of ports to measure;   receive a second signaling from the network node, the second signaling including a CSI-RS port muting pattern indication indicating a modified CSI-RS measurement configuration muting at least one muted port of the first plurality of ports; and   perform at least one CSI-RS measurement on at least one port of the first plurality of ports using the modified CSI-RS measurement configuration and omitting measurements on the at least one muted port.   
     
     
         2 .- 24 . (canceled) 
     
     
         25 . A method implemented in a wireless device, WD, configured to communicate with a network node, the method comprising:
 receiving a first signaling from the network node, the first signaling including a first channel state information reference signal, CSI-RS, measurement configuration, the first CSI-RS measurement configuration indicating a first plurality of ports to measure;   receiving a second signaling from the network node, the second signaling including a CSI-RS port muting pattern indication indicating a modified CSI-RS measurement configuration muting at least one muted port of the first plurality of ports; and   performing at least one CSI-RS measurement on at least one port of the first plurality of ports using the modified CSI-RS measurement configuration and omitting measurements on the at least one muted port.   
     
     
         26 . The method of  claim 25 , wherein the method further comprises determining the modified CSI-RS measurement configuration based on the CSI-RS port muting pattern indication. 
     
     
         27 . The method of  claim 25 , wherein the method further comprises:
 receiving correlation information indicating that a first plurality of CSI-RS measurements associated with the first CSI-RS measurement configuration is not correlated in time with a second plurality of CSI-RS measurements associated with the modified CSI-RS measurement configuration, the correlation information being received in one of:
 the first signaling; 
 the second signaling; and 
 at least one additional signaling from the network node. 
   
     
     
         28 . The method of  claim 25 , wherein method further comprises receiving a third signaling including a first list of CSI-RS port muting options; and
 the CSI-RS port muting pattern indication including an index value corresponding to one of the first list of CSI-RS port muting options.   
     
     
         29 . (canceled) 
     
     
         30 . The method of  claim 25 , wherein the method further comprises:
 determining a muted port estimate; and   transmitting, to the network node, a third signaling including an indication of the muted port estimate.   
     
     
         31 . The method of  claim 30 , wherein the method further comprises receiving the CSI-RS port muting pattern indication from the network node in response to the transmission of the indication of the muted port estimate; and
 interpreting the CSI-RS port muting pattern indication from the network node as an implicit indication of a confirmation of the muted port estimate.   
     
     
         32 . (canceled) 
     
     
         33 . (canceled) 
     
     
         34 . The method of  claim 25 , wherein the second signaling is one of a downlink control information, DCI, signaling and medium access control, MAC, control element, CE, signaling, and wherein the DCI signaling includes at least one of an application delay and a validity timer. 
     
     
         35 . (canceled) 
     
     
         36 . The method of  claim 25 , wherein the omitting comprises omitting sampling of CSI-RS symbols associated with the at least one muted port. 
     
     
         37 . The method of  claim 25 , wherein the first CSI-RS measurement configuration configures a first plurality of resource elements for measurements; and
 the method further comprising determining at least one empty resource element of the first plurality of resource elements based on the CSI-RS port muting pattern indication.   
     
     
         38 . The method of  claim 37 , wherein:
 the method further comprises receiving, from the network node, a resource element indication indicating the at least one empty resource element is usable for at least one of:
 a data reception; 
 inter-cell interference measurements; and 
 an inaction; and 
   wherein the resource element indication is one of:
 statically preconfigured by higher layer signaling; 
 dynamically indicated in one of a muting command and a skipping command; 
 associated with a single slot; and 
 associated with a periodic pattern of slots. 
   
     
     
         39 . (canceled) 
     
     
         40 . (canceled) 
     
     
         41 . The method of  claim 38 , wherein the method further comprises:
 receiving a deactivation indication; and   deactivating the resource element indication responsive to receiving the deactivation indication.   
     
     
         42 . The method of  claim 38 , wherein the method further comprises entering a sleep state during a first complete symbol period based on:
 the at least one empty resource element corresponding to the first complete symbol period; and   the resource element indication indicating the at least one empty resource element is usable for an inaction during the first complete symbol period.   
     
     
         43 . The method of  claim 42 , wherein the method further comprises:
 determining a data reception configuration for the at least one empty resource element based on the resource element indication indicating the at least one empty resource element is usable for data reception during the first complete symbol period.   
     
     
         44 . The method of  claim 25 , wherein the method further comprises transmitting a fourth signaling to the network node indicating a request for a different CSI-RS muting pattern based on an uplink buffer state of the WD. 
     
     
         45 . The method of  claim 25 , wherein the method further comprises resetting at least one channel estimation filter for the first plurality of ports responsive to receiving the CSI-RS port muting pattern indication. 
     
     
         46 . The method of  claim 25 , wherein the CSI-RS port muting pattern indication indicates a transmission configuration indicator (TCI) state; and
 the at least one muted port being associated with the TCI state.   
     
     
         47 . The method of  claim 25 , wherein the method further comprises autonomously adjusting at least one parameter of the first CSI-RS measurement configuration for the modified CSI-RS measurement based on a number of muted ports indicated by the CSI-RS port muting pattern indication being less than a number of ports configured for the first CSI-RS measurement configuration, wherein autonomously adjusting the at least one parameter includes adjusting a first number of symbols configured for the first CSI-RS measurement configuration to a second number of symbols configured for the modified CSI-RS measurement configuration, the second number of symbols being less than the first number of symbols. 
     
     
         48 . (canceled) 
     
     
         49 . A network node configured to communicate with a wireless device, WD, the network node comprising processing circuitry configured to:
 cause transmission of a first signaling to the WD, the first signaling including a first channel state information reference signal, CSI-RS, measurement configuration, the first CSI-RS measurement configuration indicating a first plurality of ports to measure;   cause transmission of a second signaling to the WD, the second signaling including a CSI-RS port muting pattern indication muting at least one muted port of the first plurality of ports and enabling the WD to utilize a modified CSI-RS measurement configuration for feedback reporting; and   receive, from the WD, at least one CSI-RS measurement report for at least one CSI-RS measurement on at least one port of the plurality of ports using the modified CSI-RS measurement configuration and omitting measurements on the at least one muted port.   
     
     
         50 .- 72 . (canceled) 
     
     
         73 . A method implemented in a network node configured to communicate with a wireless device, WD, the method comprising:
 transmitting a first signaling to the WD, the first signaling including a first channel state information reference signal, CSI-RS, measurement configuration, the first CSI-RS measurement configuration indicating a first plurality of ports to measure;   transmitting a second signaling to the WD, the second signaling including a CSI-RS port muting pattern indication muting at least one muted port of the first plurality of ports and enabling the WD to utilize a modified CSI-RS measurement configuration for feedback reporting; and   receiving, from the WD, at least one CSI-RS measurement report for at least one CSI-RS measurement on at least one port of the plurality of ports using the modified CSI-RS measurement configuration and omitting measurements on the at least one muted port.   
     
     
         74 .- 96 . (canceled)